PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9880O-Ring

DP Mfg Inc · NSN 5331-01-444-3079 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-444-3079 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-444-3079. Primary manufacturer part number: 9880.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.125 INCHES NOMINAL IN
  • Center Hole Diameter: 2.750 INCHES NOMINAL IN
  • Material: RUBBER
  • 2 verified cross-references
  • Primary manufacturer: DP Mfg Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-444-3079, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is DP Mfg Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-444-3079
Primary Part Number9880
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerDP Mfg Inc
StatusACTIVE
Cross-Sectional Height0.125 INCHES NOMINAL IN
Center Hole Diameter2.750 INCHES NOMINAL IN
MaterialRUBBER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6695-00-097-9254 INTERCHANGEABLE
Meter Movement
3110-00-100-8530D19 INTERCHANGEABLE
Bearing,ball,thrust
Gwilliam Company, Inc. Div Ball & Roller Bearing Division
5330-00-145-133518786A INTERCHANGEABLE
Gasket
Brinkley Technology Group Llc Dba Hercules Manufacturing
5975-00-255-6022 INTERCHANGEABLE
Rosette,electrical
5977-00-420-0986MGB12 INTERCHANGEABLE
Brush,electrical Contact
Prestolite Electric Inc
5120-00-449-7799 INTERCHANGEABLE
Set Fastener Eyelet
Cross-Reference Index
Part NumberManufacturer
9880 PRIMARY DP Mfg Inc (USA)
7HB502 Oshkosh Defense Llc (USA)
Related Parts
6695-00-097-9254INTERCHANGEABLE
METER MOVEMENT
3110-00-100-8530INTERCHANGEABLE
BEARING,BALL,THRUST
D19
5330-00-145-1335INTERCHANGEABLE
GASKET
18786A
5975-00-255-6022INTERCHANGEABLE
ROSETTE,ELECTRICAL
5977-00-420-0986INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
MGB12
5120-00-449-7799INTERCHANGEABLE
SET FASTENER EYELET

Frequently Asked Questions

What is NSN 5331-01-444-3079?

NSN 5331-01-444-3079 is a O-Ring, manufactured by DP Mfg Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-444-3079?

NSN 5331-01-444-3079 has 2 cross-referenced part numbers: 9880 (DP Mfg Inc), 7HB502 (Oshkosh Defense Llc).

What NSN replaces 5331-01-444-3079?

There are 6 known substitutes for 5331-01-444-3079: 6695-00-097-9254, 3110-00-100-8530, 5330-00-145-1335 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9880?

Key specifications for 9880: Cross-Sectional Height: 0.125 INCHES NOMINAL IN; Center Hole Diameter: 2.750 INCHES NOMINAL IN; Material: RUBBER. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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